Save Export Undo and Rollback Safety

EasyEDA project state changes are handled with explicit gates. This server does not promise an automatic cross-runtime undo or rollback API.

Required sequence

For schematic or PCB mutations:

1. Use writeMode=plan or writeMode=preview.
2. Create a user-managed checkpoint or backup of the project.
3. Apply only after human approval with confirmWrite=true.
4. Run read-only verification such as netlist validation, ERC, DRC, BOM checks, or export checks.
5. Save only with an explicit easyeda_project_save call.

Save

easyeda_project_save persists the current EasyEDA project state. It is never implicit and requires confirmWrite=true.

Export

Export tools write artifacts, not design state. Exports still require hash manifests, structural validation, and human review before manufacturing use.

Undo and rollback

Automatic undo or rollback is not guaranteed. Recovery depends on saved EasyEDA projects, backups, disposable test projects, or user-managed copies.

The machine-readable policy lives in src/safety/runtime-safety.ts and is covered by unit tests.